index = fessConfig.getIndexConfigIndex();
                } else if ("fess_user".equals(index)) {
                    index = fessConfig.getIndexUserIndex();
                } else if ("fess_basic_config".equals(index) && !"fess_config".equals(fessConfig.getIndexConfigIndex())) {
                    index = "basic_" + fessConfig.getIndexConfigIndex();
                }
                final String alias = index;

                        final String name = fessConfig.getIndexConfigIndex();
                        if ("fess_basic_config".equals(aliasName) && !CONFIG_INDEX_PREFIX.equals(name)) {
                            aliasName = aliasName.replaceFirst("fess_basic_config", "basic_" + name);
                        } else {

# Whether to get file roles from a file.
file.role.from.file=true
# Whether to get FTP roles from a file.
ftp.role.from.file=true

# backup

# Target files for index backup.
index.backup.targets=fess_basic_config.bulk,fess_config.bulk,fess_user.bulk,system.properties,fess.json,doc.json
# Target log files for index backup.
index.backup.log.targets=click_log.ndjson,favorite_log.ndjson,search_log.ndjson,user_info.ndjson

    String FILE_ROLE_FROM_FILE = "file.role.from.file";

    /** The key of the configuration. e.g. true */
    String FTP_ROLE_FROM_FILE = "ftp.role.from.file";

    /** The key of the configuration. e.g. fess_basic_config.bulk,fess_config.bulk,fess_user.bulk,system.properties,fess.json,doc.json */
    String INDEX_BACKUP_TARGETS = "index.backup.targets";